Home / 15,900.39-23,851.10-7,998.60

Finding the Fourth Proportional to 15,900.39, 23,851.10 and 7,998.60

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Solution

The fourth proportional to 15,900.39, 23,851.10 and 7,998.60 is: 11,998.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.39 : 23,851.10 = 7,998.60 : x
  2. Step 2: Convert to fraction form
    15,900.39/23,851.10 = 7,998.60/x
  3. Step 3: Cross multiply
    15,900.39x = 23,851.10 × 7,998.60
  4. Step 4: Simplify right side
    15,900.39x = 190,775,408.46
  5. Step 5: Solve for x
    x = 190,775,408.46/15,900.39
  6. Step 6: Final answer
    x = 11,998.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.